Purchase Requisition gets unreleased during header text changes

Hi,

The PR is getting unreleased when the user changes header text. i.e. user gets pop-up if the default approver needs to be changed.  Ideally this pop-up to select approver should not come when header text is changed.  The issue is not happening consistently but it happens once in a while.  Not able to replicate. Any pointers ?

Thanks,
Sankar